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61e77107fa
create sysfs device symlinks for snd-aoa in /sys/class/sound/controlC0 This allows hald to recognize the device as sound device. Furthermore it allows the desktop user to actually access the sound device nodes. hald and related packages will modify the acl attributes. Fixes https://bugzilla.novell.com/show_bug.cgi?id=106294 Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
132 lines
3.8 KiB
C
132 lines
3.8 KiB
C
/*
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* Apple Onboard Audio definitions
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*
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* Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
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*
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* GPL v2, can be found in COPYING.
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*/
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#ifndef __AOA_H
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#define __AOA_H
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#include <asm/prom.h>
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#include <linux/module.h>
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/* So apparently there's a reason for requiring driver.h to be included first! */
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#include <sound/driver.h>
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#include <sound/core.h>
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#include <sound/asound.h>
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#include <sound/control.h>
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#include "aoa-gpio.h"
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#include "soundbus/soundbus.h"
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#define MAX_CODEC_NAME_LEN 32
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struct aoa_codec {
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char name[MAX_CODEC_NAME_LEN];
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struct module *owner;
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/* called when the fabric wants to init this codec.
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* Do alsa card manipulations from here. */
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int (*init)(struct aoa_codec *codec);
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/* called when the fabric is done with the codec.
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* The alsa card will be cleaned up so don't bother. */
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void (*exit)(struct aoa_codec *codec);
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/* May be NULL, but can be used by the fabric.
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* Refcounting is the codec driver's responsibility */
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struct device_node *node;
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/* assigned by fabric before init() is called, points
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* to the soundbus device. Cannot be NULL. */
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struct soundbus_dev *soundbus_dev;
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/* assigned by the fabric before init() is called, points
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* to the fabric's gpio runtime record for the relevant
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* device. */
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struct gpio_runtime *gpio;
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/* assigned by the fabric before init() is called, contains
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* a codec specific bitmask of what outputs and inputs are
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* actually connected */
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u32 connected;
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/* data the fabric can associate with this structure */
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void *fabric_data;
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/* private! */
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struct list_head list;
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struct aoa_fabric *fabric;
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};
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/* return 0 on success */
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extern int
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aoa_codec_register(struct aoa_codec *codec);
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extern void
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aoa_codec_unregister(struct aoa_codec *codec);
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#define MAX_LAYOUT_NAME_LEN 32
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struct aoa_fabric {
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char name[MAX_LAYOUT_NAME_LEN];
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struct module *owner;
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/* once codecs register, they are passed here after.
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* They are of course not initialised, since the
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* fabric is responsible for initialising some fields
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* in the codec structure! */
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int (*found_codec)(struct aoa_codec *codec);
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/* called for each codec when it is removed,
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* also in the case that aoa_fabric_unregister
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* is called and all codecs are removed
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* from this fabric.
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* Also called if found_codec returned 0 but
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* the codec couldn't initialise. */
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void (*remove_codec)(struct aoa_codec *codec);
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/* If found_codec returned 0, and the codec
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* could be initialised, this is called. */
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void (*attached_codec)(struct aoa_codec *codec);
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};
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/* return 0 on success, -EEXIST if another fabric is
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* registered, -EALREADY if the same fabric is registered.
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* Passing NULL can be used to test for the presence
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* of another fabric, if -EALREADY is returned there is
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* no other fabric present.
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* In the case that the function returns -EALREADY
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* and the fabric passed is not NULL, all codecs
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* that are not assigned yet are passed to the fabric
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* again for reconsideration. */
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extern int
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aoa_fabric_register(struct aoa_fabric *fabric, struct device *dev);
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/* it is vital to call this when the fabric exits!
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* When calling, the remove_codec will be called
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* for all codecs, unless it is NULL. */
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extern void
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aoa_fabric_unregister(struct aoa_fabric *fabric);
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/* if for some reason you want to get rid of a codec
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* before the fabric is removed, use this.
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* Note that remove_codec is called for it! */
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extern void
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aoa_fabric_unlink_codec(struct aoa_codec *codec);
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/* alsa help methods */
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struct aoa_card {
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struct snd_card *alsa_card;
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};
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extern int aoa_snd_device_new(snd_device_type_t type,
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void * device_data, struct snd_device_ops * ops);
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extern struct snd_card *aoa_get_card(void);
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extern int aoa_snd_ctl_add(struct snd_kcontrol* control);
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/* GPIO stuff */
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extern struct gpio_methods *pmf_gpio_methods;
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extern struct gpio_methods *ftr_gpio_methods;
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/* extern struct gpio_methods *map_gpio_methods; */
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#endif /* __AOA_H */
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